Curse of Weakness is a 2 Mana Cost Rare Warlock Spell card from the The Witchwood set!
Give all enemy minions -2 Attack until your next turn.
Warlocks refer to this as a "balance change."
Curse of Weakness Card Review
This card looks super interesting. It’s a bit like Pint-Size Potion, but the effect lasts THROUGH your opponent’s turn. Which means that not only you can get some good trades, but you might also make your opponent’s turn much weaker. It works best against wide boards with relatively low attack minions, where even a single cast can make their board useless for your next turn. You can combo it with Doomsayer to force them to Silence / remove it with spell, or just let it blow off.
The fact that it’s Echo means that later in the game you can cast it 2 or 3 times to basically neutralize almost any mid/late game board.
It seems like a really good Control Warlock tool. It’s a solid stall tool, it basically “heals” you for the amount of damage you reduce as well as improving your trades. Stalling even a single turn in a slow Warlock deck can be really powerful – e.g. you can set up a Possessed Lackey + Dark Pact to pull out a Voidlord, or you can stall a turn to try to draw one of your AoEs (Defile, Hellfire, Twisting Nether). It can also stall on Turn 9 so you can play Bloodreaver Gul'dan on Turn 10.
Control or Cube Warlocks don’t lose much, but Mistress of Mixtures will be gone, and the “healing” part of this card can actually fit quite nicely into that gap.
Card rating: 8/10